Diver cleaning ship hull underwater
Service line 01 · Cavitation cleaning

Hulls cleaned by imploding bubbles, not chemicals.

Sealion's diver crew uses Cavitcleaner cavitation technology to remove biofouling from hulls, props, rudders, thrusters and sea-chests — without stripping antifouling paint and without harming marine life.

The technology

Low pressure. High impact.

A controlled stream of microscopic imploding air bubbles generates a shock-wave that dislodges fouling — at just 140–160 bar, the safety equivalent of a 500–800 bar jet, yet harmless to bare skin and to antifouling coatings.

  • Paint-safe
    Removes growth without stripping antifouling — extends paint life.
  • Chemical-free
    Works in salt and fresh water with no additives. ISO 14000 verified by TÜV.
  • Diver-safe
    Cavitation stream can contact bare skin without injury.
  • Material-agnostic
    Steel, fibreglass, aluminium, wood, concrete, rope — same crew, same tools.
Cavitcleaner underwater cleaning unit
What we clean

End-to-end underwater maintenance scope.

From a quick prop polish on a 40-ft sailboat to scheduled hull washes for a working commercial fleet.

Hulls — yachts, sailboats, motor vessels
Commercial & coast-guard fleet hulls
Propellers, shafts, rudders & stern gear
Bow thrusters & tunnel thrusters
Sea-chests and intake grids
Risers, columns, chains, ropes & pipes
Pontoons and floating structures
Inspection and condition reporting
Scheduled maintenance contracts
How we deliver

One contract. Four steps.

  1. 01
    Survey
    Vessel inspection (in-water or from documentation) and fouling assessment.
  2. 02
    Mobilise
    Equipment, divers and safety gear to your berth, mooring or anchorage.
  3. 03
    Clean
    Cavitation cleaning by qualified commercial divers, with topside supervision.
  4. 04
    Report
    Photo/video report of the work plus recommendations for the next interval.
The kit

Our Cavitcleaner arsenal.

Italian-built, CE-marked, R&D-tested by Cavitcleaner divers — the same gear used by port authorities, navies and coast guards worldwide.

HOT ROAD D
Yanmar L100 diesel · 8 kW · 21 L/min · 40–160 bar — our workhorse for offshore and berth-side jobs.
Evo2 & Turbo Jet guns
Hand tools that handle light fouling to barnacles and mussels.
Stingray plates
Self-suctioning plate for fast cleaning of large hull areas.
Before and after cavitation hull cleaning